.top{
    width: 700px;
    height: 153px;
    margin-bottom: 2px;
}
.top .banner{
    background: url(../img/banner.jpg);
    width: 700px;
    height: 120px;
}
.nav li{
    float: left;
    line-height: 33px;
    width: 100px;
    text-align: center;
    background-image: url(../img/button1.jpg);
}
.nav a{
    color: #330102;
    text-decoration: none;
}
.nav li:hover{
    background-image: url(../img/button1_bg.jpg);
    position: relative;
    right: 1px;
    top: -1px;
}

